Part 39

Academy figure (Paint.), a drawing usually half life-size, in crayon or pencil, after a nude model.

A*ca"di*an (&?;), a. Of or pertaining to Acadie, or Nova Scotia. "Acadian farmers." Longfellow. -- n. A native of Acadie.

Acadian epoch (Geol.), an epoch at the beginning of the American paleozoic time, and including the oldest American rocks known to be fossiliferous. See Geology. -- Acadian owl (Zoöl.), a small North American owl (Nyctule Acadica); the saw-whet.

||Ac"a*jou (&?;), n. [F. See Cashew.] (Bot.) (a) The cashew tree; also, its fruit. See Cashew. (b) The mahogany tree; also, its timber.

{ Ac"a*leph (&?;), Ac`a*le"phan (&?;) } n.; pl. Acalephs (&?;), Acalephans (&?;). [See Acalephæ.] (Zoöl.) One of the Acalephæ.

||Ac`a*le"phæ (&?;), n. pl. [NL., from Gr. &?;, a nettle.] A group of Cœlenterata, including the Medusæ or jellyfishes, and hydroids; -- so called from the stinging power they possess. Sometimes called sea nettles.

Ac`ale"phoid (&?;), a. [Acaleph + - oid.] (Zoöl.) Belonging to or resembling the Acalephæ or jellyfishes.

A*cal"y*cine (&?;), Ac`a*lys`i*nous (&?;), a. [Gr. 'a priv. + &?; calyx.] (Bot.) Without a calyx, or outer floral envelope.

A*canth" (&?;), n. Same as Acanthus.

||A*can"tha (&?;), n. [Gr. &?; thorn, fr. &?; point. See Acute.] 1. (Bot.) A prickle.

2. (Zoöl.) A spine or prickly fin.

3. (Anat.) The vertebral column; the spinous process of a vertebra. Dunglison.

Ac"an*tha"ceous (&?;), a. 1. Armed with prickles, as a plant.

2. (Bot.) Of, pertaining to, or resembling, the family of plants of which the acanthus is the type.

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A*can"thine (&?;), a. [L. acanthinus, Gr. &?;, thorny, fr. &?;. See Acanthus.] Of, pertaining to, or resembling, the plant acanthus.

A*can`tho*car"pous (&?;), a. [Gr. &?; thorn + &?; fruit.] (Bot.) Having the fruit covered with spines.

||A*can`tho*ceph"a*la (&?;), n. pl. [NL., from Gr. &?; a spine, thorn + &?; head.] (Zoöl.) A group of intestinal worms, having the proboscis armed with recurved spines.

A*can`tho*ceph"a*lous (&?;), a. (Zoöl.) Having a spiny head, as one of the Acanthocephala.

Ac`an*thoph"o*rous (&?;), a. [Gr. &?;, fr. &?; spine + &?; to bear.] Spine-bearing. Gray.

A*can`tho*po"di*ous (&?;), a. [Gr. &?; thorn + &?;, &?;, foot.] (Bot.) Having spinous petioles.

||Ac`an*thop"ter*i (&?;), n. pl. [NL., from Gr. &?; thorn + &?; wing, fin.] (Zoöl.) A group of teleostean fishes having spiny fins. See Acanthopterygii.

Ac`an*thop"ter*ous (&?;), a. [Gr. &?; spine + &?; wing.] 1. (Zoöl.) Spiny- winged.

2. (Zoöl.) Acanthopterygious.

Ac`an*thop`ter*yg"i*an (&?;), a. (Zoöl.) Belonging to the order of fishes having spinose fins, as the perch. -- n. A spiny-finned fish.

||Ac`an*thop`ter*yg"i*i (&?;), n. pl. [NL., from Gr. &?; thorn + &?; fin, dim. fr. &?; wing.] (Zoöl.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.

Ac`an*thop`ter*yg"i*ous (&?;), a. (Zoöl.) Having fins in which the rays are hard and spinelike; spiny-finned.

A*can"thus (&?;), n.; pl. E. Acanthuses (&?;), L. Acanthi (&?;). [L., from Gr. &?;. Cf. Acantha.]